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KMID : 0379220200400061307
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Journal of Korea Gerontological Society
2020 Volume.40 No. 6 p.1307 ~ p.1325
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Patterns of Cognitive Function Trajectory and Their Associated Factors in Korean Older Women in Single Households: Using Latent Class Growth Analysis
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Yoon Do-Kyung
Jun Hey-Jung
Joo Susanna
Lee Sun-Ah
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Abstract
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The aim of this study was to identify distinct patterns of cognitive function trajectory among Korean older women in single households and to investigate their associated factors. We used data from the five waves of the Korean Longitudinal Study of Ageing (KLoSA), a nationally representative longitudinal survey collected biennially from 2006 to 2014. The sample was 245 women aged 65 or above who had maintained the single household status for the five waves. Using Latent Class Growth Analysis (LCGA), distinct patterns of cognitive function trajectory were identified. Then, multinomial regression analysis was employed to examine the associations between identified trajectories and various factors (socio-demographic, health-related, psychological, and interpersonal factors at wave 1). Results showed that there were three distinct patterns of cognitive function trajectory: ‘maintaining-low’ (20.8%), ‘moderate-decreasing’ (33.9%), and ‘maintaining-high’(45.3%). Specifically, compared to the ‘maintaining-low’ group, women who were younger and scored lower level of depression were more likely to belong to the ‘moderate-decreasing’ group and the ‘maintaining-high’ group, respectively. Furthermore, those with higher household income, higher level of education, and who participated in more various types of social activities (e.g., participation in leisure/culture/sports clubs, volunteering work) were more likely to belong to the ‘maintaining-high’ group. Compared to the ‘moderate-decreasing’ group, those who were younger were more likely to belong to the ‘maintaining-high’ group. Findings suggest that socioeconomic status and social engagements may be critical for cognitive function among older women in single households, and encouraging them to remain socially active may help prevent poorer cognitive outcomes.
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KEYWORD
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Older Women, Single Households, Cognitive Function, Latent Class Growth Analysis
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